Objective To explore a new method of nasal tip plasty and its clinical effect,which is much accorded with biomechanical properties of the human body.Methods From June 2010 to March 2016,a total of 33 cases of nasal tip surgery,6 males and 27 females,were performed.Ages ranged from 22 to 46 years in this group.Ear cartilage was trimmed into two strips and sutured them together in a M shape.When located to the original position of the nasal alar cartilage,theM shaped cartilage could be used in nasal tip;when fixing part of it on the nasal septum or lengthened nasal septal cartilage,the M shaped cartilage could be used in cosmetic surgery of nasal tip lengthening.Results The follow-up period was from one month to 60 months,with average 14 months.29 patients (87.9 ％) were satisfied with the efficacy and 2 patients were suffered from infection (6.1 ％).Conclusions When the M-shaped cartilage is fixed with lengthened nasal septum,it can lengthen the nasal tip much more and the contouring and texture of nasal tip are better than that of using a shield or a cap cartilage graft.

It is difficult to measure the circular arc radius for central angle less than 30 degrees. The existing measuring methods are of low efficiency and big error. Through designing the machine vision system and studying the image detecting method for measurement, It is obtained good results by using the new measurement for tracheal intubation's circular arc radius, Realized a rapid and accurate measurement of the circular arc radius, and expanded the application in the field of machine vision.
Humans ; Imaging, Three-Dimensional ; instrumentation ; Intubation ; Trachea

At present, the existing problem in nasal feeding perfusion apparatus is laborious and instability. Designing the rolling type perfusion apparatus by using a roller pump, the problem is solved. Compared with the traditional perfusion apparatus, the advantage lies in liquid carrying only need once and simulating human swallowing process. Through testing and verification, the apparatus can be used in nasal feeding perfusion for elderly or patients.
Aged ; Enteral Nutrition ; instrumentation ; Humans ; Nose ; Surgical Tape

Objective To discuss the coverage of finger soft tissue defect with dorsal proximal digit fasciocutaneous flap on the middle and distal digit.Methods From May,2013 to December,2014,8 cases with soft tissue defects at 8 fingers were treated with dorsal proximal digit fasciocutaneous flap.The flap sizes ranged from 2.5 cm × 2.0 cm to 3.5 cm × 3.0 cm.The donor site were closed straightly.Results Eight flaps of 8 fingers survived.All the wounds at the donor sites healed well.Eight fingers in 8 cases were followed up for 6-12 months.The color,texture and contour of the flaps were satisfied.The two-point discrimination distances were 8-10 mm.Conclusion The skin defect in the middle and distal digit can be satisfied covered with dorsal proximal digit fasciocutaneous flap.This flap is a simple,reliable and safe management for digit defect and can be performed in the primary hospital.To ensure the surviving of the flap,ensure the surviving of the flap,the awareness of the anatomy of the flap should be known well.The limits of its reconstruction of sensation and coverage size exit in its application.

Severe muscle injury is still a challenging clinical problem. Exosomes derived from adipose stem cells (ASC-exos) may be a potential therapeutic tool, but their mechanism is not completely clear. This review aims to elaborate the possible mechanism of ASC-exos in muscle regeneration from the perspective of signal pathways and provide guidance for further study. Literature cited in this review was acquired through PubMed using keywords or medical subject headings, including adipose stem cells, exosomes, muscle regeneration, myogenic differentiation, myogenesis, wingless/integrated (Wnt), mitogen-activated protein kinases, phosphatidylinositol-4,5-bisphosphate 3-kinase/protein kinase B (PI3K/Akt), Janus kinase/signal transducers and activators of transcription, and their combinations. We obtained the related signal pathways from proteomics analysis of ASC-exos in the literature, and identified that ASC-exos make different contributions to multiple stages of skeletal muscle regeneration by those signal pathways.

Objective To evaluate the applied value of septal cartilage combined with perpendicular plate of ethmoid bone graft in short nose plasty in Chinese people with insufficient septal cartilage.Methods From February 2015 to March 2017,thirty-five women with short noses underwent septal extension grafting in our institute.We used perpendicular plate of ethmoid bone to enhance the L-strut structure.An L-strut,comprising 0.6 cm segments of the caudal and dorsal cartilaginous septum,was left altered to harvest more cartilages for septal extension.The harvested septal cartilage was grafted on one side of the caudal septum.Then the alar cartilage was fixed at the end of the septal cartilage graft.Nasal lengths and nasolabial angles were measured pre-and postoperatively.Results The average nasal lengthening was (3.37±1.87) mm (P＜0.001).There was no infection,cerebral spinal fluid leakage,hemorrhage and other complications postoperatively.The average follow-up was 10 months (6 months to 2 years).After operation,33 patients were satisfied with the nasal contour,1 patient complained of high tip projection whereas one patient complained of low tip projection,and the dissatisfactions were corrected by revision surgeries.Conclusions Combining the septal cartilage with perpendicular plate of ethmoid bone graft presents an adequate nose lengthening and a decreased nostril show,even in patients with very little septal cartilage.With minimum complications,this novel technique provides promising clinical outcomes and high patient satisfaction.

The contracted nose is a unique entity that follows rhinoplasty in the Asian patient, which is mainly related to infection, graft implant, multiple invasive nasal repair operations, patients’ own inflammatory reaction and basic conditions, and is a complication that seriously affects the nasal aesthetics and functional characteristics of patients. Comprehensive understanding of the causes, mechanisms and repair method of contracture nose is helpful for its prevention and treatment. In view of the causes and mechanisms of capsular contracture, this paper reviews the research progress in improving the aesthetic and functional characteristics of patients from the three levels of nasal mucosa, cartilage scaffold and skin, as well as the adjuvant treatment of skin contracture release.

At present, the existing problem in nasal feeding perfusion apparatus is laborious and instability. Designing the roling type perfusion apparatus by using a roler pump, the problem is solved. Compared with the traditional perfusion apparatus, the advantage lies in liquid carrying only need once and simulating human swalowing process. Through testing and verification, the apparatus can beused in nasal feeding perfusion for elderly or patients.

The contracted nose is a unique entity that follows rhinoplasty in the Asian patient, which is mainly related to infection, graft implant, multiple invasive nasal repair operations, patients’ own inflammatory reaction and basic conditions, and is a complication that seriously affects the nasal aesthetics and functional characteristics of patients. Comprehensive understanding of the causes, mechanisms and repair method of contracture nose is helpful for its prevention and treatment. In view of the causes and mechanisms of capsular contracture, this paper reviews the research progress in improving the aesthetic and functional characteristics of patients from the three levels of nasal mucosa, cartilage scaffold and skin, as well as the adjuvant treatment of skin contracture release.

Objective:To explore the application value of scenario simulation teaching combined with two-way evaluation in standardized training of pediatric nursing.Methods:A total of 34 trainees who received standardized training of pediatric nursing in The First Affiliated Hospital of Air Force Medical University from March 2018 to March 2019 were selected as the control group, and another 42 trainees from April 2019 to July 2020 were selected as the study group. The control group used traditional teaching, and the study group used scenario simulation teaching combined with two-way evaluation. Theoretical examination and scenario simulation exercise examination were used to assess the theoretical knowledge and clinical practice ability of the trainees, and questionnaire survey was used to evaluate the satisfaction of the trainees with the teaching effect. SPSS 22.0 was used for t-test. Results:The scores of theoretical examination[(95.12±6.24) vs. (91.05±5.12)] and scenario simulation exercise examination (nursing practice skill operation ability, ability to combine theory and practice, clinical thinking and judgment ability, emergency handling ability, communication ability, humanistic care and professional learning ability, and work attitude) of the trainees in the study group were higher than those in the control group, and the differences were statistically significant ( P<0.05). The satisfaction evaluation of the trainees in the study group with the teaching effect was higher than that in the control group, and the difference was statistically significant ( P<0.001). Conclusion:Scenario simulation teaching combined with two-way evaluation can improve the theoretical knowledge, clinical practice ability, and teaching satisfaction of pediatric nursing trainees.